Why I think Lee Sin is Low Skillcap, Low Risk, and High Reward
So, I've said off and on on the boards that I think Lee Sin has a very low skillcap. People seem to think that this means I think he's easy to play.
Here's the fact of the matter - Lee Sin is easy to play at a base level of proficiency, and he gets very good results from just this base level of proficiency. Even if you can't land a Q to save your life, if you can push flash and R, you can kick someone into your team and win games off of said kicks without any other skill as the champion. Build full tank and use your utility and mobility to set up fights, distract the team, etc - you don't have to land your Q's and do damage to do this.
Additionally, in the same way, you land a Q on someone early game for a gank and you can easily destroy them if your laner has any sort of CC/high damage, just off your high mobility and slow.
You fail? Drop a ward and W out.
Where is the risk? Where is the skillcap? Landing one skillshot is not a high skillcap. By that logic, Xerath is the most difficult champion in League to play as he has 2 skillshots and 2 ground targetted delayed AoEs.
What people MEAN when they say the words high skillcap is high skill ceiling. Lee Sin does not require a lot of skill to play at a proficient level, however, if you have a high knowledge of the characters mechanics you can do much more than that.
Now, looking at the health of the game, let's take a look at the last champion that was released with a high skill ceiling (at least as high as Lee's, imo): 
Orianna enjoyed about one patch nerf free and then received a HUGE ratio and base damage nerf to a lot of her abilities (and a movement speed reduction on her ball), coupled with some QoL buffs to make her not completely worthless. For 3-4 patches after that, she continued to receive scaling nerfs and base damage nerfs on her damage because of the huge amount of utility she offered.
Now let's look at Lee Sin:
The first patch after he was released, he received scaling buffs across the board. A few minor base damage nerfs (10 damage or less, unlike Orianna's above where she lost about 30-40 base damage on each ability at max rank). Then he got energy reductions on all of his abilities. THEN, and this is the important part - ALL OF THE NERFS AND BUFFS (aside from energy changes) were reverted. He lost the bonus scaling but gained back the base damage, kept the bonus energy on AA for his passive, kept all of the range increases and minor QoL buffs he received... And lost a tiny, tiny bit of utility (ASPD slow on E).
And then he was untouched for like, a year.
How is this, in any way, fair? Lee Sin is a mobile bruiser who is lauded as "high skillcap" which we've already identified as an actual "high skill ceiling". This character has been complained about and been one of the top competitive junglers pretty much since his release, with the running joke being that he'll never be nerfed. Lee Sin mains protect themselves by arguing that he's a "high skillcap" character, but he's not. Lee Sin's gameplay pattern is incredibly basic and VERY safe - for ganks, come in Q, E, W out if it gets dicey. W in for range, Q, E, autoattack. Or get close with W, E, and then Q. At all times, you have the option of easily leaving the fight with your escape, or, if you're 6, kicking people away from you and running.
Now take Orianna, another character who is a high skill ceiling, and she has very limited mobility and no real escape. People talk about Lee Sin "outplays" all the time but I know to this day I am more impressed by an Orianna player (or a Xerath player or any mage player, really) who manages to escape a jungle gank without blowing a summoner spell, and yet Lee Sin could do it all day long if he wanted to. If you placed Lee Sin in the middle lane and compared his mobility, safety, and danger to his enemy laner to almost anyone in the cast (barring someone like Katarina, perhaps), he would win out. The only reason we don't see Lee Sin in the lane that often is because he applies pressure more easily from the jungle.
tl;dr: Lee Sin is lauded as "high skillcap", actually has a high skill ceiling. He continues to receive nothing, and in fact a lot of nerfs were reverted, aside from minor utility nerfs. Meanwhile, characters with actual high skillcaps are continually nerfed on both utility and damage while given minor QoL to keep them playable. Why isn't Lee Sin receiving the same kind of treatment? I find it hard to believe they'd ever be able to make that character unplayable due to the amount of utility he has, so why does he get to do lots of damage off of bases and %hp?
